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Contact Information:

Email: mahdi [AT] cs [DoT] toronto [DOT] edu
Address: Bahen Center for Information Technology,
Office #5214,
Department of Computer Science,
University of Toronto

Mahdi Lotfinezhad

Department of Computer Science
University of Toronto

I am currently a postdoc at the Department of Computer Science, University of Toronto, working with Professor Peter Marbach.
I have obtained my Ph.D. degree under the supervision of Professor Ben Liang and Professor Elvino S. Sousa from the University of Toronto, Toronto, Canada, in 2008, in electrical and computer engineering. I also obtained my M.A.Sc. degree under the supervision of Professor Ben Liang in 2004. I received my B.Sc. degree in electrical engineering from the Sharif University of Technology, Tehran, Iran, in 2003.



"Nothing is so firmly believed as that which we least know." --Montaigne

::: Research

My current research interest is mainly on two fronts: random access scheduling in multi-hop wireless networks, and network formation and control for online social networks.

In the past, I analyzed and developed low-complexity scheduling and resource management policies for wireless networks with time-varying channel conditions. I also studied admission control policies where the network population is dynamic and users continuously join and leave the network.

I am much obliged to numerous researchers whose inspiring and profound work has helped me mature in the field.



::: Publications

Journals Publications:

  • Published:

    1. M. Lotfinezhad, B. Liang, E.S. Sousa, "On Stability Region and Delay Performance of Linear-Memory Randomized Scheduling for Time-Varying Networks," IEEE/ACM Transactions on Networking, vol. 17, no. 6, pp. 1860-1873, Dec. 2009. [ BibTex]
    2. M. Lotfinezhad, B. Liang, E.S. Sousa, "Adaptive Cluster-Based Data Collection in Sensor Networks with Direct Sink Access," IEEE Transactions on Mobile Computing, vol. 7, no. 7, pp 884-897, July 2008, [ BibTex]

  • Submitted:

    1. M. Lotfinezhad, B. Liang, E.S. Sousa, "Dynamic Control of Tunable Sub-optimal Algorithms for Scheduling of Time-varying Wireless Networks," Submitted to IEEE Transactions on Information Theory.
    2. M. Lotfinezhad and B. Liang, "Performance of Lossy Data Gathering in Clustered Sensor Networks for Signal Field Reconstruction," Submitted to IEEE Transactions on Parallel and Distributed Systems.

  • Under Preparation:

    1. M. Lotfinezhad, B. Liang, E.S. Sousa "Optimal Control of Constrained Cognitive Radio Networks with Dynamic Population Size," To be submitted to IEEE Transactions on Automatic Control.
    2. M. Lotfinezhad and P. Marbach "On Throughput-delay Tradeoff of CSMA Policies in Wireless Networks," To be submitted to IEEE Transactions on Information Theory.

Conference Publications:

  1. M. Lotfinezhad, B. Liang, E.S. Sousa "Optimal Control of Constrained Cognitive Radio Networks with Dynamic Population Size," to appear in the Proceedings of IEEE INFOCOM 2010, March 15-19, 2010.
  2. M. Lotfinezhad and P. Marbach "Access Delay of CSMA Policies in Wireless Networks," to appear in 2010 Information Theory and Applications (ITA) Workshop, Jan. 31-Feb 5, 2010.
  3. M. Lotfinezhad and P. Marbach "Throughput-delay Trade-off of CSMA Policies in Wireless Networks," to appear in 2010 IEEE Information Theory Workshop (ITW), January 6-8, 2010.
  4. M. Lotfinezhad and P. Marbach "On Channel Access Delay of CSMA Policies in Wireless Networks with Primary Interference Constraints," in Allerton Conference, Oct. 2009.
  5. M. Lotfinezhad, B. Liang, E.S. Sousa, "Dynamic Control of Tunable Sub-optimal Algorithms for Scheduling of Time-varying Wireless Networks," in Sixteenth IEEE International Workshop on Quality of Service (IWQoS), Jun. 2008, pp. 139 – 149. [ BibTex]
  6. M. Lotfinezhad, B. Liang, E.S. Sousa, "On the Stability Region of Linear-Memory Scheduling for Time Varying Channels," in Fifteenth IEEE International Workshop on Quality of Service (IWQoS), Jun. 2007, pp. 83 – 86. [ BibTex]
  7. M. Lotfinezhad and B. Liang, "Energy efficient clustering in sensor networks with mobile agents," in Proc. IEEE WCNC'05, Mar. 2005, pp. 1872--1877. [ BibTex]
  8. M. Lotfinezhad and B. Liang, "Effect of partially correlated data on clustering in wireless sensor networks," in Proc. IEEE SECON'04, Oct. 2004, pp. 172--181. [ BibTex]


::: Teaching

My teaching experience at the University of Toronto is as follows:
  • Sole Responsibility Instructor:

    • Introduction to Computer Networks, CSC358, Winter 2010.
      • Course website available at UofT's Blackboard.
      • Here is the course information sheet.
    • Computer Networks, ECE361, Fall, 2008.

  • Teaching Assistant:

    • Winter 2008, Quality of Service ECE1771 (graduate course),
    • 2006-2007, (fall semesters), Algorithms and Data Structure ECE345,
    • 2007-2008, Communication and Design I&II ECE298/299,
    • 2003-2007, (spring semesters), Electrical Fundamentals ECE110,
    • 2004-2006, (fall semesters), Discrete Mathematics ECE190.


::: Useful Links

"Whoever lives by meaning dies by meaning." --Ashley

Copyright 2005-2009 by Mahdi Lotfinezhad.

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